Ahaha, a very difficult question to answer. I'd say it might be a good idea to look up the most popular Japanese romance dramas, see if any of them looks interesting to you :)
-Nagi's Long Vacation - I really like how it shows things from the woman and guy's sides and how they interpreted the same events differently. I haven't seen much romance jdrama, but I haven't seen kdrama that show differing interpretations in the same way either. The characters are immature in some ways though.
